POTENTIAL BENEFITS Although knowledge about liver diseases and fibrosis has increased dramatically over the last few years, much remains to be learned. The imaging strategy that will be evaluated, ultrasound sonoelastography, has the potential to reduce the number of liver biopsies performed for the diagnosis and monitoring of hepatic fibrosis. This study is expected to provide a basis for future investigation into non-invasive imaging markers of hepatic fibrosis. Any data obtained for the purposes of this study will be available to the participant's primary physicians.